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<?php
declare(strict_types=1);
namespace BitWasp\Trezor\Bridge\Codec\CallMessage;
use BitWasp\Trezor\Bridge\Util\StreamUtil;
use Psr\Http\Message\StreamInterface;
class HexCodec
{
/**
* @var StreamUtil
*/
private $stream;
public function __construct()
$this->stream = new StreamUtil();
}
public function parsePayload(StreamInterface $stream): array
if ($stream->getSize() < 12) {
throw new \Exception("Malformed data (size too small)");
$stream = $this->stream->hex2bin($stream);
list ($type) = array_values(unpack('n', $stream->read(2)));
$stream->seek(2);
list ($size) = array_values(unpack('N', $stream->read(4)));
$stream->seek(6);
if ($size > ($stream->getSize() - 6)) {
throw new \Exception("Malformed data (sent more than size)");
return [$type, $this->stream->createStream($stream->read($size))];
public function encode(int $messageType, \Protobuf\Message $protobuf): string
$stream = $protobuf->toStream();
return unpack(
'H*',
sprintf(
"%s%s",
pack('nN', $messageType, $stream->getSize()),
$stream->getContents()
)
)[1];
Bit-Wasp /
trezor-bridge-client
